总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 1/2×(73.97-5.33)×7×(7/2+1.5)+91.08×2.5×2.5/2+1/2×(108.08-91.08)×2.5×2.5/3 的值.
题型:数学计算
解:
1/2×(73.97-5.33)×7×(7/2+1.5)+91.08×2.5×2.5/2+1/2×(108.08-91.08)×2.5×2.5/3
=1/2×68.64×7×(7/2+1.5)+91.08×2.5×2.5/2+1/2×(108.08-91.08)×2.5×2.5/3
=1/2×68.64×7×5+91.08×2.5×2.5/2+1/2×(108.08-91.08)×2.5×2.5/3
=1/2×68.64×7×5+91.08×2.5×2.5/2+1/2×17×2.5×2.5/3
=0.5×68.64×7×5+91.08×2.5×2.5/2+1/2×17×2.5×2.5/3
=34.32×7×5+91.08×2.5×2.5/2+1/2×17×2.5×2.5/3
=240.24×5+91.08×2.5×2.5/2+1/2×17×2.5×2.5/3
=1201.2+91.08×2.5×2.5/2+1/2×17×2.5×2.5/3
=1201.2+227.7×2.5/2+1/2×17×2.5×2.5/3
=1201.2+569.25/2+1/2×17×2.5×2.5/3
=1201.2+284.625+1/2×17×2.5×2.5/3
=1201.2+284.625+0.5×17×2.5×2.5/3
=1201.2+284.625+8.5×2.5×2.5/3
=1201.2+284.625+21.25×2.5/3
=1201.2+284.625+53.125/3
=1201.2+284.625+17.708333
=1485.825+17.708333
=1503.533333 答案:1/2×(73.97-5.33)×7×(7/2+1.5)+91.08×2.5×2.5/2+1/2×(108.08-91.08)×2.5×2.5/3=1503.533333你的问题在这里没有得到解决?请到 热门难题 里面看看吧!